SBASA51 May   2020 AMC1336-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
  6. Specifications
    1. Table 1.  Absolute Maximum Ratings
    2. Table 2.  ESD Ratings
    3. Table 3.  Recommended Operating Conditions
    4. Table 4.  Thermal Information
    5. Table 5.  Power Ratings
    6. Table 6.  Insulation Specifications
    7. Table 7.  Safety-Related Certifications
    8. Table 8.  Safety Limiting Values
    9. Table 9.  Electrical Characteristics
    10. Table 10. Switching Characteristics
    11. 6.1       Insulation Characteristics Curves
    12. 6.2       Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Analog Input
      2. 7.3.2 Modulator
      3. 7.3.3 Isolation Channel Signal Transmission
      4. 7.3.4 Clock Input
      5. 7.3.5 Digital Output
    4. 7.4 Device Functional Modes
      1. 7.4.1 Output Behavior in Case of a Full-Scale Input
      2. 7.4.2 AVDD Diagnostics and Fail-Safe Output
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Digital Filter Usage
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Input Filter Design
      4. 8.2.4 Application Curve
      5. 8.2.5 What to Do and What Not to Do
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Nomenclature
        1. 11.1.1.1 Isolation Glossary
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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Power Supply Recommendations

In a typical frequency-inverter application, the high-side power supply (AVDD) for the AMC1336-Q1 is generated from the controller-side supply (DVDD) of the device by an isolated dc/dc converter circuit. Figure 54 shows a low-cost solution based on the push-pull driver SN6501 and a transformer that supports the desired isolation voltage ratings. TI recommends using a low-ESR decoupling capacitor of 0.1 µF and an additional capacitor of minimum 1 µF for both supplies of the AMC1336-Q1. Place these decoupling capacitors as close as possible to the device power-supply pins to minimize supply current loops and electromagnetic emissions.

The AMC1336-Q1 does not require any specific power up sequencing. Consider the analog settling time tASTART as specified in the Table 10 table after ramp up of the AVDD high-side supply.

Connect the high-side ground pin AGND of the AMC1336-Q1 to one of the analog inputs AINx to avoid common-mode input voltage range violations.

AMC1336-Q1 ai_power_supply_basa51.gifFigure 54. Decoupling the AMC1336-Q1